Natural numbers - practice for 11 year olds - page 5 of 24
Number of problems found: 461
- The ratio
The ratio of girls to boys in Mrs. White's class is 3:2. If there are 12 boys, how many girls are in the classroom? - Sum and rounding
I know two numbers whose sum is 20. When each round and then added together, I get the 30. What are these numbers? - Difference 43311
We have the number A = 753 672. Calculate the difference between it and the number A rounded to tens of thousands. - Evaluate 21
Evaluate 6xy for x=5 and y=2. We are evaluating algebraic expressions and the addition and subtraction of polynomials.
- A teacher
A teacher baked five dozen cookies for the 16 students in her class. If the teacher divided the cookies equally among her students, how many cookies did she give each student? - There 14
There are 250 people in the museum. 2/5 of the 250 people are girls 3/10 of the 250 people are boys The rest of the 250 people are adults Work out the number of adults in the museum. - Polynomial: 29981
Calculate the value of a polynomial: 14 * 32 - 27:3 + 11 * 4:2 = - Juice division
534 liters of juice were in a container. If every person gets 14 liters, how many people will get juice from the container? - Big number
How many ones (digits) does the number 12345678910111213141516 ... 4647484950 contain? Did we write all natural numbers from 1 to 50 in a row?
- Expressions 62284
Express the numbers 18, 28, 32, 40, 48, and 200 as numeric expressions composed of the digits 5. - Cigarettes 2910
In 1983, the world produced 27 million cigarettes and cigars. If one person smokes 20 cigarettes a day, how many people smoked a day in 1983? - Enrollees
The enrolment for this school year in Villahermosa integrated school is 276. If 1/3 are grade ten and 1/4 grade seven, how many are grade eight and grade nine enrollees? - Students
There are 2/6 girls out of 1050 students at the school. Of these, 4/5 have another sibling. How many girls are in school? How many boys are in school? How many girls do not have a sibling? - Six-eights
Six-eights of the one hundred pupils joined the Math Glee club. If the Math Glee club members were grouped into three, how many members were in each group?
- 214568793 62744
Find the three digits that need to be deleted from 214568793 to make the number as small as possible. What is the sum of these deleted digits? - Cherries 58331
There were 60 cherries in the bowl. Honza ate 3/12, Martin 7/20 and Zuzka 3/10. How many cherries are left in the bowl? - Substituted 4151
Find out what numbers need to be substituted for the letters X, Y, and Z to have the following relation: XZY + XYZ --------- YZX - Players - baseball
There are 20 players on each two baseball teams. If 2/5 of the players on team 1 miss practice and 1/4 of the players on team two miss practice, how many more players from team 1 missed practice than team 2? - Monica 3
Monica works on her drawings for 2 hours. She spends 1/6 hour on each drawing. How many drawings does she work on in 2 hours?
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